GB2385098A - Compliant brush shroud assembly for gas turbine engine compressors - Google Patents

Compliant brush shroud assembly for gas turbine engine compressors

Info

Publication number
GB2385098A
GB2385098A GB0310262A GB0310262A GB2385098A GB 2385098 A GB2385098 A GB 2385098A GB 0310262 A GB0310262 A GB 0310262A GB 0310262 A GB0310262 A GB 0310262A GB 2385098 A GB2385098 A GB 2385098A
Authority
GB
United Kingdom
Prior art keywords
bristle
packs
housing
inner diameter
shroud assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB0310262A
Other versions
GB2385098B (en
GB0310262D0 (en
Inventor
Amitava Datta
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Advanced Components and Materials Inc
Original Assignee
Advanced Components and Materials Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Advanced Components and Materials Inc filed Critical Advanced Components and Materials Inc
Publication of GB0310262D0 publication Critical patent/GB0310262D0/en
Publication of GB2385098A publication Critical patent/GB2385098A/en
Application granted granted Critical
Publication of GB2385098B publication Critical patent/GB2385098B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
    • F16J15/3288—Filamentary structures, e.g. brush seals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
    • F01D11/12—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible. deformable or resiliently-biased part
    • F01D11/127—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible. deformable or resiliently-biased part with a deformable or crushable structure, e.g. honeycomb
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/28—Arrangement of seals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/16—Sealings between pressure and suction sides
    • F04D29/161—Sealings between pressure and suction sides especially adapted for elastic fluid pumps
    • F04D29/164—Sealings between pressure and suction sides especially adapted for elastic fluid pumps of an axial flow wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/55—Seals
    • F05D2240/56—Brush seals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A brush shroud assembly for reducing the tip clearance between a rotating blade and an engine casing is disclosed. The assembly includes a plurality of bristle packs supported within a housing such that the bristle distribution at the inner diameter of the bristle packs is substantially continuous. The continuous surface is created by mounting the bristles packs within a housing such that the packs are flared, i.e. width at the outer diameter of the bristle pack is smaller than that at the inner diameter. Various embodiments are disclosed for mounting the flared bristle packs to form a substantially continuous inner diameter The bristle strips may be mounted in one or more annular rings, may be secured within one or more channels in the housing, the bristle packs may be formed into a tufted ring, or any of these may be utilized in combination with a backplate supporting an abradable seal, i.e. a hybrid design.
GB0310262A 2000-11-06 2001-11-05 Compliant brush shroud assembly for gas turbine engine compressors Expired - Fee Related GB2385098B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US24618200P 2000-11-06 2000-11-06
PCT/US2001/047287 WO2002036950A2 (en) 2000-11-06 2001-11-05 Compliant brush shroud assembly for gas turbine engine compressors

Publications (3)

Publication Number Publication Date
GB0310262D0 GB0310262D0 (en) 2003-06-11
GB2385098A true GB2385098A (en) 2003-08-13
GB2385098B GB2385098B (en) 2004-12-15

Family

ID=22929622

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0310262A Expired - Fee Related GB2385098B (en) 2000-11-06 2001-11-05 Compliant brush shroud assembly for gas turbine engine compressors

Country Status (5)

Country Link
US (1) US6536773B2 (en)
AU (1) AU2002226029A1 (en)
DE (1) DE10196832T1 (en)
GB (1) GB2385098B (en)
WO (1) WO2002036950A2 (en)

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Publication number Priority date Publication date Assignee Title
US6880829B1 (en) * 2000-11-06 2005-04-19 Advanced Components & Materials, Inc. Compliant brush shroud assembly for gas turbine engine compressors
US7931276B2 (en) * 2002-03-20 2011-04-26 United Technologies Corporation Brush seal
US6669202B1 (en) * 2002-06-27 2003-12-30 General Electric Co. Multi-core brush seal assembly for rotary machines
US7052015B2 (en) * 2002-08-06 2006-05-30 United Technologies Corporation Cooling arrangement for brush seal
DE10244038A1 (en) 2002-09-21 2004-04-01 Mtu Aero Engines Gmbh Inlet lining for axial compressor stage of gas turbine plants is formed by tufts of metal wires combined into brushes with ends engaging in corresponding grooves of stator
US7435049B2 (en) * 2004-03-30 2008-10-14 General Electric Company Sealing device and method for turbomachinery
US20070235946A9 (en) * 2004-05-28 2007-10-11 Garrison Glenn M Air riding seal
US7334311B2 (en) * 2004-11-03 2008-02-26 United Technologies Corporation Method of forming a nested can brush seal
US7226054B2 (en) * 2004-12-14 2007-06-05 United Technologies Corporation Clamp lock brush seal assembly
DE102005006939A1 (en) * 2005-02-16 2006-08-24 Mtu Aero Engines Gmbh sealing arrangement
WO2007047104A1 (en) * 2005-10-11 2007-04-26 Stein Seal Company Shutdown seal for reactor coolant pump
US7780399B1 (en) 2006-01-12 2010-08-24 Stein Seal Company Reverse pressure double dam face seal
US20080315529A1 (en) * 2007-06-19 2008-12-25 Addis Mark E Ease of assembly aid for brush seal
WO2009024770A1 (en) * 2007-08-22 2009-02-26 Cross Manufacturing Company (1938) Ltd Improvements in relation to brush seals
US8414254B2 (en) * 2008-02-18 2013-04-09 United Technologies Corporation Sealing assembly for a turbine engine
US8028996B2 (en) * 2008-04-04 2011-10-04 General Electric Company System and method for adjusting stiffness of a brush sealing system
US8146922B2 (en) * 2008-06-25 2012-04-03 Dresser-Rand Company Shaft isolation seal
US20100164177A1 (en) * 2008-12-30 2010-07-01 Eaton Corporation Hybrid multistage brush seal
US8100405B2 (en) * 2009-01-06 2012-01-24 General Electric Company System and method for providing compliant rotating seals
US8529201B2 (en) * 2009-12-17 2013-09-10 United Technologies Corporation Blade outer air seal formed of stacked panels
WO2012082805A2 (en) * 2010-12-13 2012-06-21 Sealeze A Unit Of Jason, Inc. High temperature device shaft brush seal assembly, brush seal, and mounting arrangement
EP2505881A1 (en) * 2011-03-30 2012-10-03 Siemens Aktiengesellschaft Brush seal for high pressure differentials
US8939709B2 (en) * 2011-07-18 2015-01-27 General Electric Company Clearance control for a turbine
US9249621B2 (en) * 2012-01-18 2016-02-02 Rajiva A. Dwarka Coil brush curtain assembly
FR2995949B1 (en) * 2012-09-25 2018-05-25 Safran Aircraft Engines TURBOMACHINE HOUSING
US9938845B2 (en) 2013-02-26 2018-04-10 Rolls-Royce Corporation Gas turbine engine vane end devices
US9587501B2 (en) * 2013-11-11 2017-03-07 General Electric Company Rotary machine secondary sealing assembly and method of assembling the same
JP2015175236A (en) * 2014-03-13 2015-10-05 三菱電機株式会社 Blower, ventilator and refrigeration cycle device
BE1025283B1 (en) * 2017-06-02 2019-01-11 Safran Aero Boosters S.A. SEALING SYSTEM FOR TURBOMACHINE COMPRESSOR

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Publication number Priority date Publication date Assignee Title
US885032A (en) * 1907-06-24 1908-04-21 Sebastian Ziani De Ferranti Fluid packing.
US4457515A (en) * 1981-07-27 1984-07-03 Micro-Plate, Inc. Brush seal and method
US5480160A (en) * 1993-05-06 1996-01-02 Mtu Motoren-Und Turbinen-Union Muenchen Gmbh Shaft seal with in-line sealing rings
US6120622A (en) * 1996-10-08 2000-09-19 Mtu Motoren- Und Turbinen-Union Muenchen Gmbh Process and arrangement for manufacturing brush-type seals
US6139019A (en) * 1999-03-24 2000-10-31 General Electric Company Seal assembly and rotary machine containing such seal
US6308957B1 (en) * 1998-10-08 2001-10-30 Rolls Royce Plc. Brush seal

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US2349643A (en) * 1940-09-07 1944-05-23 Spiral Brushes Inc Brush construction
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DE19712088C2 (en) 1997-03-22 1999-06-24 Mtu Muenchen Gmbh Brush seal with bristles inclined in the circumferential direction
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US6027121A (en) 1997-10-23 2000-02-22 General Electric Co. Combined brush/labyrinth seal for rotary machines
US6231047B1 (en) 1998-05-29 2001-05-15 Eg&G Engineered Products Brush seal

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Publication number Priority date Publication date Assignee Title
US885032A (en) * 1907-06-24 1908-04-21 Sebastian Ziani De Ferranti Fluid packing.
US4457515A (en) * 1981-07-27 1984-07-03 Micro-Plate, Inc. Brush seal and method
US5480160A (en) * 1993-05-06 1996-01-02 Mtu Motoren-Und Turbinen-Union Muenchen Gmbh Shaft seal with in-line sealing rings
US6120622A (en) * 1996-10-08 2000-09-19 Mtu Motoren- Und Turbinen-Union Muenchen Gmbh Process and arrangement for manufacturing brush-type seals
US6308957B1 (en) * 1998-10-08 2001-10-30 Rolls Royce Plc. Brush seal
US6139019A (en) * 1999-03-24 2000-10-31 General Electric Company Seal assembly and rotary machine containing such seal

Also Published As

Publication number Publication date
GB2385098B (en) 2004-12-15
DE10196832T1 (en) 2003-11-13
GB0310262D0 (en) 2003-06-11
AU2002226029A1 (en) 2002-05-15
US20030030220A1 (en) 2003-02-13
US6536773B2 (en) 2003-03-25
WO2002036950A3 (en) 2002-07-11
WO2002036950A2 (en) 2002-05-10

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20081105